Traditional Tune Service Tune Installation Option:Blemished PCM (>5% paint missing) [+$75] - 1996-2000 4.3L 5.0L 5.7L 7.4L Email file(s) to be reviewed

Email file(s) to be reviewed

20-25ft-lbs of torque gains are common out of this platform

All 2007+ 6

The scan cable and factory computer(s) (if desired) are returned to us for a refund of the deposit (less 3% merchant fees)

MPVI4 is your all-in-one solution for scanning

Traditional Tune Service Tune Installation Option:Blemished PCM (>5% paint missing) [+$75] - 1996-2000 4.3L 5.0L 5.7L 7.4L Email file(s) to be reviewedOur traditional tune is our custom mail order tune that does not involve data logging. The tune will provide horsepower and torque increases, improved throttle response and shifting, and overall driveability. Contact us for an estimated range of gains for your vehicle type. Contact us for our mail in form if you would like to send in your control module(s) to be tuned. Supported Vehicles: Most 1996 to 2013 4 speed GMC Chevrolet gas vehicles with 4.